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Corporate Profile

Marathon Oil Corporate (NYSE: MRO) is engaged in worldwide exploration, production and marketing of liquid hydrocarbons and natural gas; oil sands mining and bitumen upgrading in Canada; domestic refining, marketing and transportation of crude oil and petroleum products; and worldwide marketing and transportation of products manufactured from natural gas, such as liquefied natural gas and methanol.

Upcoming Events

Q2 2010 Marathon Oil Corporation Earnings Conference Call Tuesday, August 3, 2010 2:00 p.m. ET Speakers Howard J. Thill, Vice President, Investor Relations & Public Affairs, Marathon Oil Corporation Clarence Cazalot, President and CEO Janet F. Clark, Executive Vice President & CFO Gary R. Heminger, EVP of Downstream David E. Roberts, EVP of Upstream Garry L. Peiffer, SVP, Finance and Commercial Services for Refining, Marketing and Transportation remind me days before the event Enter your e-mail address

Recent Events

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Contact Information

Investor Relations (For investor inquiries) Howard J. Thill Vice President Investor Relations and Public Affairs P.O. Box 3128 Houston, TX 77253-3128 phone: 713-296-4140 email: hjthill@marathonoil.com Chris C. Phillips Manager, Investor Relations phone: 713-296-3213 email: ccphillips@marathonoil.com

Corporate Headquarters Marathon Oil Corporation 5555 San Felipe Road Houston, TX 77056-2723 Principal Stock Transfer Agent Computershare P.O. Box 43078 Providence, RI 02940 phone: 888-843-5542 email: web.queries@computershare.com Independent Registered Public Accounting Firm PricewaterhouseCoopers LLP 1201 Louisiana Suite 2900 Houston, TX 77002-5678 phone: 713-356-4000 fax: 713-356-4717

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